/// <summary>
/// Drop object and all deriving items from MySql Data
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="obj"></param>
internal static void BuildDrop <T>(T obj)
{
string query;
List <SqlObject> sqlObjects = Converter.Convert(obj);
foreach (SqlObject sqlObject in sqlObjects)
{
if (SqlFunc.ReflectPrimary(sqlObject) == null)
{
Logger.Verbose("ID is null, we can't delete this...");
continue;
}
query = $"DELETE FROM ";
query += $"`{Configuration.MySqlDatabase}`.`{sqlObject.Table}` ";
query += $"WHERE {Converter.GetPrimaryProperty(obj).Name} = {SqlFunc.ReflectPrimary(sqlObject)};";
sqlObject.CommandText = query;
SqlFunc.Row_Drop_ID(sqlObject);
}
}
/// <summary>
/// Update object in MySql Data
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="obj"></param>
internal static void BuildUpdate <T>(T obj, string propertyName = null)
{
string query;
List <SqlObject> sqlObjects = Converter.Convert(obj);
foreach (SqlObject sqlObject in sqlObjects)
{
if (!string.IsNullOrEmpty(propertyName) && !sqlObject.Items.Any(x => x.PropertyName.Contains(propertyName)))
{
continue;
}
if (SqlFunc.ReflectPrimary(sqlObject) == null)
{
Logger.Verbose("Primary is null, we need to insert, not update");
BuildInsert(Converter.ChangeType(sqlObject.AttachedObject, sqlObject.AttachedObject.GetType()));
continue;
}
query = $"UPDATE ";
query += $"`{Configuration.MySqlDatabase}`.`{sqlObject.Table}` SET ";
if (string.IsNullOrEmpty(propertyName))
{
int paramCount = 1;
foreach (SqlColumn col in sqlObject.Items)
{
query += $"{col.ColumnName} = @param{paramCount},";
paramCount++;
}
}
else
{
foreach (SqlColumn col in sqlObject.Items)
{
if (col.PropertyName.Contains(propertyName))
{
query += $"{col.ColumnName} = @param1";
break;
}
}
}
query = query.TrimEnd(',');
query += $" WHERE {Converter.GetPrimaryProperty(obj).Name} = {SqlFunc.ReflectPrimary(sqlObject)};";
sqlObject.CommandText = query;
SqlFunc.Row_Update_ID(sqlObject, propertyName);
if (!string.IsNullOrEmpty(propertyName))
{
break;
}
}
}
/// <summary>
/// Insert or Update the object in SqlHandler, depending on where it's primary exists in the related table.
/// </summary>
public void Sync()
{
OnSyncing();
if (SqlFunc.ReflectPrimary(this) == null)
{
Insert();
}
else
{
Update();
}
OnSynced();
}
/// <summary>
/// Select Query Builder
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="selectOptions"></param>
/// <param name="convertTo"></param>
/// <param name="args"></param>
/// <returns></returns>
internal static List <T> BuildSelect <T>(SelectOptions selectOptions, ConditionalOptions conditionalOptions, string[] columns, string[] fields, object[] values, Type convertTo = null, WhereOption whereOption = WhereOption.EQUAL, SelectLimiter limit = null)
{
string query;
if (selectOptions == SelectOptions.FIELDS)
{
query = $"SELECT `{string.Join("`, `", columns)}` FROM ";
}
else
{
query = $"SELECT * FROM ";
}
Type type = convertTo ?? typeof(T);
// Table Name
if (!(type.GetCustomAttributes(typeof(SqlTableAttribute), true).FirstOrDefault() is SqlTableAttribute table))
{
Logger.Verbose($"SqlTableAttribute was not found on object type: {type}");
return(new List <T>());
}
SqlObject sqlObject = new SqlObject
{
Table = table.TableName
};
query += $"`{Configuration.MySqlDatabase}`.`{sqlObject.Table}`";
switch (conditionalOptions)
{
case ConditionalOptions.NONE:
break;
case ConditionalOptions.BY_ID:
query += $" WHERE {Converter.GetPrimaryPropertyColumnName(type)} = @param1";
break;
case ConditionalOptions.WHERE:
query += $" WHERE ";
int iter = 1;
foreach (string fie in fields)
{
if (iter != 1)
{
query += " AND ";
}
switch (whereOption)
{
case WhereOption.EQUAL:
query += $"`{fie}` = @param{iter}";
break;
case WhereOption.NOTEQUAL:
query += $"`{fie}` != @param{iter}";
break;
case WhereOption.GREATERTHAN:
query += $"`{fie}` > @param{iter}";
break;
case WhereOption.LESSTHAN:
query += $"`{fie}` < @param{iter}";
break;
default:
throw new ArgumentNullException("Invalid or Missing WhereOption");
}
iter++;
}
break;
case ConditionalOptions.WHERENULL:
query += $" WHERE `{fields[0]}` IS NULL";
break;
default:
break;
}
if (limit != null)
{
query += limit.QueryData;
}
else
{
query += ";";
}
sqlObject.CommandText = query;
List <T> objects;
switch (selectOptions)
{
case SelectOptions.ALL:
switch (conditionalOptions)
{
case ConditionalOptions.NONE:
objects = SqlFunc.Select <T>(sqlObject, null);
break;
case ConditionalOptions.BY_ID:
objects = SqlFunc.Select <T>(sqlObject, null, values);
break;
case ConditionalOptions.WHERE:
objects = SqlFunc.Select <T>(sqlObject, null, values);
break;
case ConditionalOptions.WHERENULL:
objects = SqlFunc.Select <T>(sqlObject, null, values);
break;
default:
Logger.Verbose("Conditional Select Error");
objects = new List <T>();
break;
}
break;
case SelectOptions.FIELDS:
switch (conditionalOptions)
{
case ConditionalOptions.NONE:
objects = SqlFunc.Select <T>(sqlObject, columns);
break;
case ConditionalOptions.BY_ID:
objects = SqlFunc.Select <T>(sqlObject, columns, values);
break;
case ConditionalOptions.WHERE:
objects = SqlFunc.Select <T>(sqlObject, columns, values);
break;
case ConditionalOptions.WHERENULL:
objects = SqlFunc.Select <T>(sqlObject, columns, values);
break;
default:
Logger.Verbose("Conditional Select Error");
objects = new List <T>();
break;
}
break;
default:
Logger.Verbose("Select Type Error");
objects = new List <T>();
break;
}
foreach (T obj in objects)
{
foreach (PropertyInfo property in type.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
object[] attributes = property.GetCustomAttributes(false);
object column = attributes
.FirstOrDefault(x => x.GetType() == typeof(SqlColumnAttribute));
if (column != null)
{
SqlColumnAttribute col = column as SqlColumnAttribute;
// Should we be getting this derived property? If not, skip
if (selectOptions == SelectOptions.FIELDS && !columns.Contains(col.ColumnName))
{
continue;
}
if (col.IsTable)
{
List <object> data = BuildSelect <object>(SelectOptions.ALL, ConditionalOptions.WHERE, null, new string[] { col.AttachedTable }, new string[] { SqlFunc.ReflectPrimary(obj).ToString() }, property.PropertyType);
if (data.Count > 0)
{
property.SetValue(obj, data[0]);
}
else
{
Logger.Verbose($"Dataset for {property.PropertyType} had no value...");
}
}
else if (property.PropertyType != typeof(byte[]) && typeof(IList).IsAssignableFrom(property.PropertyType))
{
Type listOf = property.PropertyType.GetGenericArguments()[0];
property.SetValue(obj, Activator.CreateInstance(property.PropertyType));
foreach (object item in BuildSelect <object>(SelectOptions.ALL, ConditionalOptions.WHERE, null, new string[] { col.AttachedTable }, new string[] { SqlFunc.ReflectPrimary(obj).ToString() }, listOf))
{
(property.GetValue(obj) as IList).Add(item);
}
}
}
}
}
return(objects);
}